| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Sciammas Maurice | EVP, WW Sales & Marketing | 5808 LAKE WASHINGTON BLVD NE, KIRKLAND | /s/ Saria Tseng, attorney-in-fact for Mr. Maurice Sciammas | 19 Aug 2025 | 0001360833 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MPWR | Common Stock | Gift | $0 | -1,000 | -50% | $0 | 1,000 | 19 Aug 2025 | Peter Rafferty and Eric Toothill 2021Trust | F1 |
| transaction | MPWR | Common Stock | Gift | $0 | -1,499 | -10.92% | $0 | 12,228 | 19 Aug 2025 | Various Sciammas GRATs | F2 |
| transaction | MPWR | Common Stock | Gift | $0 | +1,499 | $0 | 1,499 | 19 Aug 2025 | Rosalind Sciammas Brokerage Account | F3 | |
| holding | MPWR | Common Stock | 102,325 | 19 Aug 2025 | Direct | ||||||
| holding | MPWR | Common Stock | 44,930 | 19 Aug 2025 | Sciammas Family Trust | ||||||
| holding | MPWR | Common Stock | 1,699 | 19 Aug 2025 | The Chloe Liliane Sciammas 2020 Irrevocable Trust | ||||||
| holding | MPWR | Common Stock | 1,699 | 19 Aug 2025 | The Patrick Francis Sciammas 2020 Irrevocable Trust | ||||||
| holding | MPWR | Common Stock | 1,699 | 19 Aug 2025 | The Joseph Roger Sciammas 2020 Irrevocable Trust | ||||||
| holding | MPWR | Common Stock | 2,000 | 19 Aug 2025 | Rosalind Sciammas Family 2021 Trust | ||||||
| holding | MPWR | Common Stock | 5,000 | 19 Aug 2025 | Clement Sciammas Family 2021 Trust | ||||||
| holding | MPWR | Common Stock | 9,481 | 19 Aug 2025 | Maurice Sciammas Trust FBO Oski Crew | ||||||
| holding | MPWR | Common Stock | 9,481 | 19 Aug 2025 | Christina Sciammas Trust FBO Oski Crew | ||||||
| holding | MPWR | Common Stock | 1,499 | 19 Aug 2025 | Clement Sciammas Brokerage Account | ||||||
| holding | MPWR | Common Stock | 4,015 | 19 Aug 2025 | By Sciammas Trust 2020 |
| Id | Content |
|---|---|
| F1 | 1,000 shares were distributed from the Peter Rafferty and Eric Toothill 2021 Irrevocable Trust, on which the reporting person is a Trustee, to an individual who is not an immediate family member living in the same household of the reporting person. In addition, the Company has determined that the reporting person does not have any management or investment control or any other pecuniary interests over the shares. No funds were exchanged and no sale of shares occurred in the transfer. |
| F2 | 1,499 shares were distributed from the Sciammas Siblings 2021 GRATs, on which the reporting person is a Trustee, to the Rosalind Sciammas brokerage account. No funds were exchanged, and no sale of shares occurred in the transfer. |
| F3 | 1,499 shares were received by the Rosalind Sciammas brokerage account from Sciammas Siblings 2021 GRATs. No funds were exchanged, and no sale of shares occurred in the transfer |